Fair Value Measurements (Schedule Of Financial Liabilities Carried At Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	$ 15,514	$ 20,337	$ 15,514	$ 20,337
Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	15,514	20,337	15,514	20,337
Series C Preferred Embedded Derivative [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	10,921	13,804	10,921	13,804
Series C Preferred Embedded Derivative [Member] | Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Series C Preferred Embedded Derivative [Member] | Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Series C Preferred Embedded Derivative [Member] | Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	10,921	13,804	10,921	13,804
Warrant derivative [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	4,593	6,533	4,593	6,533
Warrant derivative [Member] | Level 1 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Warrant derivative [Member] | Level 2 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	0	0	0	0
Warrant derivative [Member] | Level 3 [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivative Financial Instruments Liabilities, Fair Value	$ 4,593	$ 6,533	$ 4,593	$ 6,533